Unit 4 Our World 重点句子语法 仁爱科普版八年级英语上册

仁爱八上 Unit 4 重点句子语法 1. I put on more clothes to protect myself from cold. 我穿上更多的衣服来保护自己不感冒。The heavy rain prevented us from playing football. 大雨阻止了我们踢足球。① put on 穿上；戴着（动作）wear穿着；戴着（状态）have on（与wear相似）三个都是行为动词而in是介词， in +颜色/衣服② protect …from…保护…不受…的侵害We should try our best to protect children from danger．我们应该尽力保护儿童免受危害.③ prevent...from… 阻止…的发生… 类似的短语还有 stop...from, keep...from.Nothing could prevent us from coming here．没有任何事情能阻止我们到这儿来.No one can stop us (from) leaving．没人能够阻止我们离开的.注意：prevent／stop...from在主动语态中, from可省去, 但prevent／stop...from用于被动语态时, from不可以省略. 如：The heavy snow prevented us from going out for sports．＝The heavy snow prevented our going out for sports．大雪阻止了我们外出活动. 2. The man sends expensive roses to the girl. 男人送昂贵的玫瑰给女孩。He sends her to school. It is cheap to send for a doctor.他送她去学校。派人去请医生是很便宜的。① send sb sth = send sth to sb 送给某人某物 (双宾语)② send sb to +名词 把某人送到某地；send for sb 派人去请，去叫 3. He searched his bag for his keys. 他在包里找钥匙。He searched for information online over and over again.他一次又一次地在网上搜索信息。① searched 表明句子是过去时，② search +地点+ for + 名词搜查某地为某物 注意：search 接跟搜寻的范围I search the classroom for my glasses. 我在教室里找我的眼镜.(教室是范围） ③ search for +具体的的目标 搜索/搜寻...They are searching for the missing child．他们在寻找失踪的孩子。We are on the way searching for truth. 我们在探求真理的路上。④ over and over again 一再地;来回来去;再三再四'I don't understand it,' he said, over and over again. “我不明白，”他反复不停地说。Why do I have to tell you over and over again 为什么我要一次又一次的告诉你？You mean he painted the same tree over and over again 你是说他一直重复画同样的树 4. He feeds some grass to the horses. 他喂马吃草。 He feeds the cows on grass. 他在草地上喂牛。Pandas feed on bamboo. 熊猫以竹子为食。① feeds 表明句子是一般现在时，且主语是第三人称单数。② feed 的用法：feed…to 把…喂给…吃. （feed后接饲料或食物，to后接动物或小孩）如：Please feed some grass to the cow. 请给牛喂点草. She always feeds milk to the baby. 她经常给婴儿喂奶.feed…on 用…喂… （feed后接人或动物，on后接动物或小孩，on可与with 替换）如：The child was feeding the monkey on/with a banana.那孩子用香蕉喂猴子.feed on 以…为食,靠…为生（to后接饲料或食物，主语多为动物）The kind of whale does not feed on small fish ... 这种鲸鱼并不以小鱼为食.对比：live on多指人“以…为食；靠…生活”。如：He lives on fish and potatoes. 他以鱼和土豆为主食。 They live on ￡70 a week. 他们靠每周70英镑维持生活。 5. Millions of plants will die without water. 没有水，数百万植物就会死亡。The ground is covered with dead leaves.枯叶覆盖着地面。His death makes me sad.他的死让我很伤心。① plants 复数形式表类别，will die 表明是一般将来时形式，且后面动词是原形。② be covered with 被...覆盖；dead ... ...